The whole point of a relationship is mutual growth surrounded by love. This is true of a relationship with Jesus. In the song, Bono is describing the joys and pains of his relationship with Jesus; his lyrics keep coming back to love. "I still haven't found what I'm looking for" —suggests that even if you have found the Good Way, doesn't mean you have all the answers; Christians don't have all the answers. But, Bono, along with many other Christians, is longing for the perfect (refined) relationship with Christ which will only happen upon ascension to heaven, when we are joined with Him in all surpassing love. In a way, this is a David-esk love song to God.
The whole point of a relationship is mutual growth surrounded by love. This is true of a relationship with Jesus. In the song, Bono is describing the joys and pains of his relationship with Jesus; his lyrics keep coming back to love. "I still haven't found what I'm looking for" —suggests that even if you have found the Good Way, doesn't mean you have all the answers; Christians don't have all the answers. But, Bono, along with many other Christians, is longing for the perfect (refined) relationship with Christ which will only happen upon ascension to heaven, when we are joined with Him in all surpassing love. In a way, this is a David-esk love song to God.